US Desmo track days are open to European and American bikes. Other bikes are allowed on a space available basis. Our track days have three groups limited to a maximum of 30 riders in each group. The white group is for those who may have not been on a track before or are more conservative riders, and passing is limited to straights. The green group is for more experienced street riders with passing allowed on the outside of turns. The red group is for racers, ex-racers, and fast riders who are comfortable with a fast pace. Riders who are determined to be unsafe will be asked to change to another group or disallowed from the event. Bike and rider requirements are available on our website. We provide technical inspectors, two ambulances, professional corner workers, starter, and on-track control riders.